CVE Watch—

CVE-2021-34527

Microsoft Windows Print Spooler Remote Code Execution Vulnerability

CVSS

—

Sin CVSS

EPSS

99.8%

p100

KEV

SÍ

3 nov 2021

Exploit Today

0-100

Publicado: — · Última mod.: —

EPSS · 30d

99.8%EPSS · 30 días99.8%

2026-06-302026-07-16

Ficha del catálogo KEV

Producto

Microsoft / Windows

Vulnerabilidad

Microsoft Windows Print Spooler Remote Code Execution Vulnerability

Añadido a KEV

3 nov 2021

Remediar antes de

3 may 2022

Uso conocido en ransomware

Sí

Descripción resumida

Microsoft Windows Print Spooler contains an unspecified vulnerability due to the Windows Print Spooler service improperly performing privileged file operations. Successful exploitation allows an attacker to perform remote code execution with SYSTEM privileges. The vulnerability is also known under the moniker of PrintNightmare.

Acción requerida

Apply updates per vendor instructions.

Notas

Reference CISA's ED 21-04 (https://www.cisa.gov/news-events/directives/ed-21-04-mitigate-windows-print-spooler-service-vulnerability) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 21-04. https://nvd.nist.gov/vuln/detail/CVE-2021-34527

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